Tor servers run by educational institutions and academic establishments :
.edu domains:
USA :
aftbit,18.228.0.188
alexryantorrelay,131.215.172.23
balerion,128.12.226.56
beezwaks,128.175.170.150
berrycup,18.82.3.196
BlackIce,128.173.14.108
BostonUCompSci,204.8.156.142
caslab,130.132.177.126
casttor,130.184.75.118
celeborn,128.12.226.82
cmutornode,128.2.142.104
csailmitexit,128.52.128.105
csailmitnoexit,128.52.160.20
EecsUmichExit,EecsUmichExit1,141.212.108.13
epitaphtwo,128.12.177.59
Firebird79,212.41.3.148
GEO,128.117.43.92
GEO2b,192.43.244.42
hwds,18.82.3.136
ibben,128.12.226.56
ibibUNC0,204.85.191.30
Jalapiano,146.151.127.200
KUITTC2,129.237.123.57
moria1,128.31.0.34 - N.B. Long standing Tor Authority Server - hosted by MIT.
moriatoo,128.31.0.34
NewCourier,128.210.3.225
omfglolwtfbbq1337,138.110.45.38
Onions,18.238.2.85
pook0oow,195.154.5.123
raspberrytea,18.82.3.205
sipbtor,18.187.1.68
strangefoot2,131.215.30.92
sunriseInOuterSpace,129.64.8.147
tanet,18.125.1.222
UFPOatWSU00,134.121.67.106
UFPOatWSU01,134.121.67.105
umntor,146.57.249.104
UncleEnzo,18.238.1.85
ungoliant,128.12.226.82
128.237.157.114
UtahState0,UtahState1,129.123.7.39
UtahState2,UtahState3,129.123.7.8
UtahStateExit,UtahStateExit2,129.123.7.6
UWashingtonCSE,128.208.2.233
VERITAS,18.181.5.37
vtcsec,128.173.55.11
vtluug,128.173.89.245
WesCSTor,129.133.8.31
Whirlpool,64.254.175.3
yjmTorServT,139.78.141.247
zzzrouteruiuc,130.126.142.171
aftbit,18.228.0.188,alexryantorrelay,131.215.172.23,balerion,128.12.226.56,beezwaks,128.175.170.150,berrycup,18.82.3.196,BlackIce,128.173.14.108,BostonUCompSci,204.8.156.142,caslab,130.132.177.126,casttor,130.184.75.118,celeborn,128.12.226.82,cmutornode,128.2.142.104,csailmitexit,128.52.128.105,csailmitnoexit,128.52.160.20,EecsUmichExit,EecsUmichExit1,141.212.108.13,epitaphtwo,128.12.177.59,Firebird79,212.41.3.148,GEO,128.117.43.92,GEO2b,192.43.244.42,hwds,18.82.3.136,ibben,128.12.226.56,ibibUNC0,204.85.191.30,Jalapiano,146.151.127.200,KUITTC2,129.237.123.57,moria1,128.31.0.34,moriatoo,128.31.0.34,NewCourier,128.210.3.225,omfglolwtfbbq1337,138.110.45.38,Onions,18.238.2.85,pook0oow,195.154.5.123,raspberrytea,18.82.3.205,sipbtor,18.187.1.68,strangefoot2,131.215.30.92,sunriseInOuterSpace,129.64.8.147,tanet,18.125.1.222,UFPOatWSU00,134.121.67.106,UFPOatWSU01,134.121.67.105,umntor,146.57.249.104,UncleEnzo,18.238.1.85,ungoliant,128.12.226.82,128.237.157.114,UtahState0,UtahState1,129.123.7.39,UtahState2,UtahState3,129.123.7.8,UtahStateExit,UtahStateExit2,129.123.7.6,UWashingtonCSE,128.208.2.233,VERITAS,18.181.5.37,vtcsec,128.173.55.11,vtluug,128.173.89.245,WesCSTor,129.133.8.31,Whirlpool,64.254.175.3,yjmTorServT,139.78.141.247,zzzrouteruiuc,130.126.142.171
linglom,140.109.232.105 - TW
linglom,140.109.232.105
.ac domains:
crunch0r,128.130.204.91 - GB
ephemer3,128.232.18.57 - GB
motmot,137.205.124.35 - GB
T0T0R0,164.15.167.7 - BE
UCLCrypto,192.135.168.251 - BE
crunch0r,128.130.204.91,ephemer3,128.232.18.57,motmot,137.205.124.35,T0T0R0,164.15.167.7,UCLCrypto,192.135.168.251
.uni- domains in Germany - DE
Avalon,132.230.150.81
cn,134.99.112.168
csUniHB,134.102.200.101
Disco,131.246.19.81
fluxe4,131.188.40.188 - N.B. Node operator runs a Tor Authority Server.
lakedistrict1,134.34.125.68
shaundasschaf,131.188.24.14
theophysicsatunikn,134.34.147.22
unir,139.30.239.23
131.188.156.63
141.54.159.184
139.18.25.35
UnseenAcademicals,134.106.3.254
WohnheimE,134.96.65.17
Avalon,132.230.150.81,cn,134.99.112.168,csUniHB,134.102.200.101,Disco,131.246.19.81,fluxe4,131.188.40.188,lakedistrict1,134.34.125.68,shaundasschaf,131.188.24.14,theophysicsatunikn,134.34.147.22,unir,139.30.239.23,131.188.156.63,141.54.159.184,139.18.25.35,UnseenAcademicals,134.106.3.254,WohnheimE,134.96.65.17
Swedish University Networks:
sunet .se :
Kiruna,193.11.164.242
Lule,193.11.164.243
salsa,130.242.60.20
Kiruna,193.11.164.242,Lule,193.11.164.243,salsa,130.242.60.20
mdfnet .se :
mdfnet1,193.11.114.43
mdfnet2,193.11.114.45
mdfnet3,193.11.114.46
mdfnet4,193.11.114.47
WolfExit,193.11.129.250
mdfnet1,193.11.114.43,mdfnet2,193.11.114.45,mdfnet3,193.11.114.46,mdfnet4,193.11.114.47,WolfExit,193.11.129.250
nordu .net :
ndnr1,109.105.109.162
ndnr1,109.105.109.162
...
Including these avoid lists in your ExcludeNodes does not prevent access to educational resources or to any Tor hidden_services (such as resource libraries, which may or may not be hosted on such networks) and simply prevents your Tor client from building circuits to these nodes.
As a private individual using the Tor network - there are perhaps many reasons as to why you would not want to make any connections to educational, university and/or academic institutions.
Moreover, the above Tor Relays and Exit nodes are very likely to have access by a large number of individuals i.e. lecturers, students, janitors etc. They are also very likely to be used in research projects, academic studies and for the collection of metrics etc. All of these factors are perhaps not conducive to preserving the individual privacy of regular Tor network users.
Also see: http://youtu.be/CJNxbpbHA-I?t=10m37s - The Tor Network [30c3] - from 10:37